Organisms use carbohydrates to build large molecules. Some carbohydrates act as energy stores, and others give structural support. Carbohydrates are also broken down to generate metabolic energy. Match the three specific examples of carbohydrate use below to a general function.
A liver cell synthesizes glycogen from glucose.
A plant cell synthesizes cellulose from glucose.
A brain cell uses the energy in glucose to synthesize ATP.

"A liver cell synthesizes glycogen from glucose." ---> build large molecules.

"A plant cell synthesizes cellulose from glucose." ---> structural support.

"A brain cell uses the energy in glucose to synthesize ATP" obtaining energy or reserve energy.

Explanation:

Carbohydrates are classified into large groups, where the simplest are monosaccharides (ex: glucose), followed by desacarids, trisaccharides and polysaccharides as the most complex.

Carbohydrates are hydrated carbonic structures that also attract water masses, they are very useful when it comes to generating energy reserves, energy sources, structures of tissue or vegetable support, and together with proteins are one of the most fundamental components of extracellular matrices to nourish various cells, such as proteonglycans or glycoproteins.

genetic variation can be caused by mutation (which can create entirely new alleles in a population), random mating, random fertilization, and recombination between homologous chromosomes during meiosis (which reshuffles alleles within an organism's offspring).